Rewinding mechanism for type-writing machines.



A. E. KARLBERG & M.'B. SARGENT' RBWINDING MECHANISM FOR TYPE WRITINGMACHINES.

APPLICATION FILED APR. 7, 1914.

IN VEN T 0R5 E. w

4 Attorney Patented July 28, 1914.

WITNESSES 5 w UNITED srnrr ns PATENT OFFICE.

ARVID EMANUEL KARLBERG AND MARSHALL BIDWELL SARGENT, 0F OWENSBORO,KENTUCKY, ASSIGNOBS TO THE STENOTYPE COMPANY, OF INDIANAPOLIS,

INDIANA.

Specification of Letters Patent.

Patented July 28, 1914.

Application filed April 7, 1914. Serial No. "830,317..

chincs,-the obj cet of the invention being to provide simple andeflicient mechanism which will be operable from the paper feed mechanismof a machine of the class employed for -stenographic typewriting, toaccurately reel the paper strip step-by-stcp after it leaves the writingmechanism, and to so construct such rewindin g means that it may bereadily and quickly manipulated manually in such manner as to permitready retrograde rotation of the rewinding' reel when the operatordesires to inspect the writing on the reeled paper strip.

Vith this object in view, the invention consists in certain novelfeatures of construction and combinations of partsas hereinafter setforth and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view (partly inelevation) showing the application of our improvements; Fig. 2 is a planview partly in section; Fig. 3 is a detail view illustrating positionswhich the parts may assume under different conditions, and F 4 is anenlarged sectional view illustrating the ratchet devices.

.1 represents the frame of the machine, wherein is mminted suitableprinting means embodying a platen 2 and type bars 3 .-the latter beingoperable by suitably arranged key levers 1. A universal bar 5, operatedby the keylevers, is connected. by an arm 6 and pitman 7 with paperfeeding mechanism 8.

A paper strip 9 passes from a supply roll ll'and after passing, in frontof the platen ahd over guiding devices 12, passes through the paper feedmechanism 8 and it will then IGELIWflIdlYfIOIIl said frame 1, said armsbeing provided at their rear ends with sleeves 1617 respectively. Aspindle 18 is revolubly mounted in the sleeve 16 and to one end of thisspindle, a disk 19 is secured by means of a screw 20, the other end ofsaid spindle being provided with a thumb piece 21. The spindle 18 isalso longitudinally movable and is normally pressed in one direction bymeans of a spring 22 inclosed within the sleeve 16.

A spindle 23 is mounted in the sleeve 17 of arm 14: and provided at oneend with a thumb piece 24. Adisk 25 is secured to the inner end of thespindle 23 by means of a screw 26, and near the head of thisscrew, thedisk 25 is provided with a pin 27. A removable hub or core piece 28 isdisposed between the disks and is made hollow or with socketed ends toreceive the headsofthe screws 20 and 26 and is also notohed as at. 29 toreceive the pin 27 on disk 25, so as to trally to the outerface of thereel disk '25,

and adjacent to this ratchet wheel, a disk 31 mounted loosely on thespindle 23 and provided with a peripheral flange 32 inclosing theratchet wheel but spaced radially therefrom. A gravity pawl 33 ispivot-ally attached to the inner face of the disk 31 and its tooth ismaintained by gravity, in engagement with the toothed periphery of theratchet wheel when the parts are disposed in their normal positions, asshown in full lines in Fig. When the disk 31 is turned over, asindicated in dotted lines in Fig. 3, the pawl will drop by gravity fromengagement with the ratchet wheel and rest on a pad 33 secured to theflange 32 of the disk 31. When the ratchet devices are thus disposed,the rewinding reel may be turned backwardly to permit the free unwindingof the paper when the operator desires to inspect portions of thewriting on the paper.

The disk 31 of the ratchet devices is provided with an arm 34 which maybe secured to the disk by means of a plate 35 from which said armprojects and which is secured in any suitable manner to the disk 31. Apitman 36 connects the arm 3& with the paper 'feed mechanism 8, sothatthe movements of the latter will be transmitted to the ratchetdevices for operating the rewinding reel. The pitman 36 comprises tworatchet devices connected with said reel and comprising a ratchetwheeland a pawl nor- .mally Testing by gravity over and engaging said.ratchet Wheel, an abutment for said, pawl when the same is disposedunder and out of engagement with the ratchet wheeland a pitmancomprising jointed sections, connecting said ratchet devices with amovable Ipart of the typewriting mechanism.

2. The combination with typewriting mechanism and arewinding' reel, of aratchet wheel secured to the rewinding reel, a loosely mounted part, agravity pawl carried by said loosely mounted part and nor;

-typewriting mechanism.

3. Rewinding mechanism for typewriting 1 ing witnesses.

is disposed under and out of engagement with the ratchet-wheel, a pitmancomprising ointed sections connecting said loosely mounted part with amovable part of the machines, comprising a rewinding reel, a

mounting therefor, a ratchet wheel secured to the reel, a part looselymounted with respect to the reel, a gravity pawl carried by the looselymounted part and normally disposed over and engaging the ratchet wheel,an abutment for the pawl when it drops by gravity from the ratchetwheel, and an operating pitman connected with said loosely mounted part,

4. Rewinding mechanism for typewriting machines, comprising a reel, amounting therefrom, a ratchet wheel secured to the reel, a looselymounted disk having a flange inclosing the ratchet wheel, a gravity,pawl carried by said disk and adapted to normally project over theratchet wheel and engage the same, the flange of said disk constitutingan abutment for the free end of the pawl when the disk is turned todispose said pawl under and -out of engagement with the ratchet wheel,an arm projecting from said disk, and an operating pitman connected withsaid arm.

i In testimony whereof, we have signed this specification in thepresence of two subscril ARVID EMANUEL KARLBERG. MARSHALL BIDWELLSARGENT. Witnesses:

EDW; GROEZANGER, CHAS. Gr. NALLE.

